Audiotechnica公司1998年推出一种新型多通道反射式电容传声器．其型号是AT854R.该传声器内置四组半心型指向拾音头，使高音的音质更加理想。它采用桌面平放设计，不防碍讲话者的视线。四角独立拾音，十分适用于视象会议等场所。该传声器的频响为70～16000Hz，汗通零敏度为－37 Audiotechnica introduced a new multi-channel reflective condenser microphone in 1998. The model is AT854R.The microphone built four sets of half-heart-shaped pickup head, so that the sound quality of the treble even more ideal. It uses a flat desktop design, does not hinder the speaker’s attention. Independent pickup four corners, is very suitable for video conferencing and other places. The microphone’s frequency response is 70 ~ 16000Hz, Khan-zero sensitivity of -37